Home / 1,529.56-2,110.84-939.98

Finding the Fourth Proportional to 1,529.56, 2,110.84 and 939.98

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Solution

The fourth proportional to 1,529.56, 2,110.84 and 939.98 is: 1,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.56 : 2,110.84 = 939.98 : x
  2. Step 2: Convert to fraction form
    1,529.56/2,110.84 = 939.98/x
  3. Step 3: Cross multiply
    1,529.56x = 2,110.84 × 939.98
  4. Step 4: Simplify right side
    1,529.56x = 1,984,147.38
  5. Step 5: Solve for x
    x = 1,984,147.38/1,529.56
  6. Step 6: Final answer
    x = 1,297.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.